better quality audio is here -> http://archive.org/details/Hisnul_Muslim
Authentic Du'as & Adhkar from the Qur'an and the Sunnah of the Messenger of Allah (peace and blessings upon him) Hisnul Muslim is arguably the most famous anthology of Adkhar and Duaâs of the Messenger of Allah. The original compilation by Saâed Ibn âAli Ibn Wahf Al-Qahtani is one of the most authentic collection available and has become the most popular duâa book in the Muslim world today. Angelwing presents Hisnul Muslim as an invaluable audio production in Arabic with English introductions. The two-volume set contains all the essential Duaâs and Adkhar for daily life recited by the world renowned Hafiz Shaykh Yahya Hawwa in his unique harmonious tone.